Actual Booster is a small utility that aims to improve the performance of applications by managing the priority in the background.

It works by changing the priority of the currently active (foreground) application/program/game. In theory that should provide extra resources to the process.

However, if your computer is relatively idle other than the application you are running in the foreground, this trick might not provide that much of a performance boost, and remember that some background processes that you may be running can be impacted by using this tool.